Shingle-sawing apparatus.



A. C. JEFFERSON.

SHINGLE SAWING APPARATUS.

APPLICATION FILED lun: 15. 1912.

Patented Aug. 17, 1915.

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Wl NESSESK* Q Patented Aug. 17, 1915.

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. SHIINGLEV-SAWING APPARATUS.

Specification of Letters atent. Patented Aug. 17, 1915.

Application filed .Tune 15, 1912. Serial No. 703,838.

T0 all whom, it may concern Be it known that I, ARGHIEC. JEFFERSON,

a citizen of the United States, residing at St. Paul, iii the county ofRamsey and State of Minnesota, have invented certain new and usefulImprovements in Shingle-Saw-` yview of a series of shingle blockcarriers broken away; Fig. l is a section on line Q/-g/ of Fig. 3; Fig.5 is a detail of a block holding dog forming part of'my invention; Fig.6 -is a detail of a spalt discarding device; Fig. 7 is a detail of guiderollers for the carriages; and Fig. 8 is a plan view of one of thecarriage links.

As shown in the drawings, I employ an endless block conveyer composed ofa plu-V rality of vertically disposed carriages vor links A. havinghinge connection 2. The said conveyer is suitably actuated, theactuating mechanism and the saw portion of the machine not being shown.The conveyer travels within guideways 6, each carriagesupportinganti-friction guide rollers 7 upon its upper and lower sides and rearrollers S engaging with the guideways. tending through openings 9 ineach link is a plurality of opposed top and bottom dogsv 10 each havingcentral fulcrum support 11; Y

The outer` ends of said dogs travel within grooved rails 12 carried bythe guidewayy and the inner ends are formed with .inwardly directedpoints 13 to engage with the upper and lower sidesV of the shingleblock. Restraining coil springs 14 are shown positioned in contact withthe inner The sides of the outer ends of the dogs. grooved rails 12 areformed with inward bends 1:3 at the end of travel of the conveyer forthe purpose of turning the dogs upon their fulcrums and releasing thesupported blocks.

For the purpose of discarding thespalt froni'each carriage when releasedby the dogs I provide plungers 16 centrally slidable through each link,said plungers being normally pressed rearwardly by surrounding coilsprings 17. The inner ends of the plungers support a plate 18 inset inthe inner face of the carriagelink, the outer ends of the plungerstraveling in a grooved rail 19 centrally supported by the guideway.

TheA rail 19 at the proper point is formed with a forwardly extendingportion 20 for the purpose of thrusting the plungers forwardly whenbrought into contact therewith to discard the released spalt from thecarriage...

In operation the carriages willbe operated in a suitable manner inconnection with suitable shingle cutting saws not shown. At apredetermined point the guideways 6, as heretofore described, willactuate the dogs 10 to release the shingle spalt.

out, be actuated by the grooved rail 19 Vto discard the released spaltfrom the carriage. I claim as my invention: y 1, In a shingle sawingyapparatus, the combination with a plurality oftrackways, a series ofblock supporting elements carrIhe plungcrs will then, as heretoforepointed rie'd by said trackways and linked together to form a continuousconveyer, upper and lower rows of block gripping devices piv- Voted insaid elements and extending through the rear faces of the latter,control elements along said trackways to engage with the kprojectingends of said devices to trip said devices at predetermined intervals,block ejecting means alsoon said linked elements extending through therear faces of the latter, and further control elements in engagementwith theexten'ding ends of said ejectling means to operate'the lattersimultaneously With the block releasing movements of said block grippingdevices.

2. In a shingle sawing apparatus, lthe combination with trackvvays, aseries of pivotally connected block carrying links, op-

posed block gripping devices carriedl by each link, a block yejectingdevice carried by each link between the block gripping devices, and

controlling elements in connection with said" Copies of this patent maybe obtained for ve cents each, by addressing the Commissioner ofPatents,

- Washington, D. Cif

